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Table 1 Median-lethal doses of propoxur, DEET and their mixture on susceptible Ae. aegypti.
| Chemicals | Dm without synergists | Dm with PBO | Dm with DEF |
|---|---|---|---|
| propoxur | 1.97 (1.78–2.19) | 0.27 (0.17–0.42) | 1.01 (0.83–1.24) |
| DEET | 1189 (1088–1299) | 611 (596–629) | 1078 (1005–1155) |
| mixture | 319 (296–343) | 406 (385–428) | 128 (119–136) |
| mixture ratio P:D | 1:600 | 1:2000 | 1:1000 |
| Slope of the regression lines (± s.e.) | |||
| propoxur | 2.83 (0.19) | 2.16 (0.18) | 1.95 (0.22) |
| DEET | 4.16 (0.42) | 3.98 (0.12) | 3.18 (0.20) |
| mixture | 3.32 (0.18) | 3.76 (0.20) | 2.96 (0.14) |
